80
Prime factorization of 80 = 2x2x2x2x5.
The prime factorization of 80 is 2x2x2x2x5 (or 24x5).
80 as a product of prime numbers can be expressed as: 2x2x2x2x5
2X * 2X * 2X * 2X5 multiply the coefficients together and add the exponents = 168 ---------
Prime factorization of 540 = 2x2x3x3x3x5 Prime factorization of 80 = 2x2x2x2x5
2 x 2 x 2 x 2 x 5 = 80
The prime factors of 80 are 2,2,2,2,5.The product is 2x2x2x2x5, which is 80.
63/80 is in lowest terms. 80=2x2x2x2x5 2 and 5 do not got into 63 without a remainder.
The least common multiple of 8, 16, and 20 is 80.
The GCF of 80 and 102 is 2. The factor tree explains this. The factorization of 80 is 2x2x2x2x5. The factorization of 102 is 2x3x17. You then compare the 2 factorizations and then multiply the numbers they both have in common, but only by the number of times they appear. So the answer is 2, because it shows up in both factorizations and it shows up only once in the factorization of 102.
To find the LCM of two numbers, you first break them into their prime factors. In this case, we have 25 and 80, which are broken down into: 25 = 5x5 80 = 2x2x2x2x5 The next step is to identify any common factors. Both numbers have a 5 as a prime factor, so we can discard one of these. That leaves us with 5, 5, 2, 2, 2 and 2. Multiply all these together: 2x2x2x2x5x5 = 400 Thus the LCM of 25 and 80 is 400.
The greatest common factor of 12, 28, and 40 is 4 To find the greatest common factor of numbers, you first need to split these numbers into their prime factors: 12 = 2x2x3 28 = 2x2x7 40 = 2x2x2x2x5 You then need to find which prime factors are shared between the numbers. In this case, each of the numbers uses two 2s, but no other numbers are common between them. So to find the GCF we simply multiply two 2s: 2x2=4 Thus the GCF of 12, 28 and 40 is 4.