5 x 7 x 7 = 245
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These are the prime factors of 245 = 5 x 7 x 7.
5, 7 and 7
175/245 = 35/49 = 5/7 these are both prime numbers
2)490 5)245 7)49 7)7 = 1 When reduced to '1' Then the four numbers are 2,5,7,7. All prime numbers.
sum of prime factors of 245 = 12factors of 245: 1, 5, 7, 35, 49, 245.prime factors of 245: 5 & 7sum of prime factors of 245: 5 + 7 = 12