The prime factorization of 245 is 5 x 7 x 7
5 x 7 x 7 = 245
5 x 7 x 7 = 245
The process of prime factorisation is one of repeated division by primes, while obtaining a quotient without a remainder, until the process yields a quotient of 1 245 is not divisible by 2 or by 3
245 ÷ 5 = 49 ................................. 5 is a prime factor of 245
49 is not divisible by 5
49 ÷ 7 = 7 ..................................... 7 is a prime factor of 245
7 ÷ 7 = 1 ....................................... 7 is a prime factor of 245 So the prime factors of 245 are 5, 7 and 7
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As a product of its prime factors: 5*7*7 = 245
The prime factorization of 450 is 2 x 3 x 3 x 5 x 5
825
The prime factorization of 245 is 5 x 7 x 7
1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490 2, 5 and 7 are prime.