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How about: 223-2 = 221

Or as a product of its prime factors: 13*17 = 221

221=13*17

Q: Prime factor tree of 231

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83 is prime. No tree.

46 = 21 x 231

The purpose of a factor tree is to divide a number into prime factors. 1 is not a prime number.

When the bottom branch consists entirely of prime numbers.

234 117,2 39,3,2 13,3,3,2

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231 77,3 11,7,3

231 77,3 11,7,3

231 77,3 11,7,3

231 3, 77 3, 7, 11

231 / \ 77*3 / \ 11*7 231=11*7*3

83 is prime. No tree.

No, they are not relatively prime. They have 3 as a common divisor.No.180 & 231 have a common factor of 3.

IT IS PRIME there is no factor tree

No, they have the common factor 3.

The purpose of a factor tree is to notate the process of finding the prime factorization. If a number is already prime, a factor tree is not necessary.

46 = 21 x 231

The GCF is 3.