Hcf of 21 and 28
WebThe GCF of 21 and 28 is 7. Steps to find GCF. Find the prime factorization of 21 21 = 3 × 7; Find the prime factorization of 28 28 = 2 × 2 × 7; To find the GCF, multiply all the … WebWHAT IS THE HCF OF 21 28 42 Get the answers you need, now! adepojupelumi adepojupelumi 05/23/2024 Mathematics High School answered WHAT IS THE HCF OF 21 28 42 ... Advertisement Advertisement cwrw238 cwrw238 Answer: 7. Step-by-step explanation: 21 = 3 * 7. 28 = 2 * 2 * 7. 42 = 2 * 3 * 7. Collecting common factors: t is …
Hcf of 21 and 28
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WebMar 12, 2024 · We can use this to figure out the HCF of 21,28. This is how to do it. Step 1: The first step is to use the division lemma with 28 and 21 because 28 is greater than 21. … WebGreatest common factor (GCF) of 21 and 28 is 7. GCF(21,28) = 7. We will now calculate the prime factors of 21 and 28, than find the greatest common factor (greatest common …
WebHow to Find the LCM of 21 and 28? Answer: Least Common Multiple of 21 and 28 = 84 Step 1: Find the prime factorization of 21 21 = 3 x 7 Step 2: Find the prime factorization of 28 28 = 2 x 2 x 7 Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm: LCM = 84 = 2 x 2 x 3 x 7 WebFeb 7, 2010 · The greatest common factor (GCF) is often also called the greatest common divisor (GCD) or highest common factor (HCF). Keep in mind that these …
WebApr 6, 2024 · HCF of the reciprocals of the fractions when it is divided by 12,18,21 and 28 . 43 ,109 and 1615 is It leaves remainder 3 in each case. Solution For Find the smallest 4 digit number such that 5. HCF of the reciprocals of the fractions when it is divided by 12,18,21 and 28 . 43 ,109 an WebSolution: The prime factorization of 40 is 2 x 5. The prime factorization of 60 is 2 x 3 x 5. Step 2: List out the highest number of common prime factors of 40 and 60 ie., Step 3: Now, on multiplying the common prime factors we …
WebHCF of 21 and 28 The Greatest Common Factor (GCF) for 21 and 28, notation CGF(21,28), is 7. Explanation: The factors of 21 are 1,3,7,21 The factors of 28 are 1,2,4,7,14,28
WebFeb 25, 2012 · The first step when finding an HCF is to break the numbers down into their prime factors. In this case we get: 21 = 3x7 49 = 7x7 The next step is to identify any common prime factors. In this... brown leather couch cushion coversWebThe factors of 21 (all the whole numbers that can divide the number without a remainder) are 1, 3, 7 and 21; The factors of 28 are 1, 2, 4, 7, 14 and 28. The second step is to … every little thing is magic lyricsWebSolution: ∵ LCM × HCF = 20 × 21. ⇒ HCF (20, 21) = (20 × 21)/420 = 1. Therefore, the highest common factor of 20 and 21 is 1. Example 3: Find the highest number that … every little thing karaokeWebApr 6, 2024 · HCF of the reciprocals of the fractions when it is divided by 12,18,21 and 28 . 43 ,109 and 1615 is It leaves remainder 3 in each case. Solution For Find the smallest 4 … brown leather couch and rugWebTo calculate the LCM of 21 and 28 by the division method, we will divide the numbers (21, 28) by their prime factors (preferably common). The product of these divisors gives the … every little thing llcWebJul 15, 2024 · lcm=84. so the numbers are 21 and 28. the greater numbers 28. hcf=7 and lcm =2×2×3×7=84. Advertisement Advertisement New questions in Math. In this year's Madhymik examination out of 150 examinees of our school, 100 examinees passed with grade - A. In another nearby school out of 100 exami … every little thing is gonna be okayWebSep 30, 2014 · The factors of 21 are 1, 3, 7, and 21 . The factors of 28 are 1, 2, 4, 7, 14, and 28 . The factors common to both numbers are 1 and 7 . The greatest one is 7. … every little thing is gonna be ok