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2x2x2x5x7

Q: Write 140 as a product of prime factors?

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140 = 2 x 2 x 5 x 7 = 22 x 5 x 7

To find the GCF of two numbers, you first need to break them down into their prime factors. For 140 and 252, these are: 140 = 2x2x5x7 252 = 2x2x3x3x7 The next step is to identify common prime factors. In this case, both numbers have two 2s and a 7 in their prime factors. To find the GCF, we simply multiply these common prime factors together: 2x2x7 = 28. Thus the greatest common factor of 140 and 252 is 28.

They are not relatively primeNo. To be relatively prime they could only have the number 1 as a common factor, but they have other common factors.

120 and 140 have lots of common factors. e.g. 10, 5, 1, 20 You probably need to find the Highest common factor which is 20. But if you are doing your homework you probably need to show how you worked it out: 1 - Find the prime factors for each number 2 - Write the ones that appear in both in a list 3 - Multiply the numbers in your list

The factors of 20 are: 1 2 4 5 10 20 The prime factors are: 2 x 2 x 5 & The factors of 28 are: 1 2 4 7 14 28 The prime factors are: 2 x 2 x 7 & GCD: 4 LCM: 140

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140 = 2 x 2 x 5 x 7 = 22 x 5 x 7

It is 7 because as a product of its prime factors: 2*2*5*7 = 140 or as 22*5*7 = 140

2 x 2 x 5 x 7 = 140

140 = 22 x 51 x 71

The prime numbers (factors) of 140 are: 2,5,7

2 x 2 x 5 x 7

No. The prime factors of 140 are 2,2,5 and 7 The prime factors of 210 are 2,3,5 and 7 The common prime factors are 2,5 and 7 Thus the HCF is 2x5x7, or 70.

Prime factorization is the finding which prime number multiply to get to make the original number. 140: 1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140 Prime: 2, 5, 7 Prime Factorization: 2 x 2 x 5 x 7

2, 5 and 7.

140 = 2 x 2 x 5 x 7 OR 22 x 5 x 7

The prime factors are: 2 x 2 x 5 x 7

140 = 2 x 2 x 5 x 7