Best Answer

121 = 11² = compisote

211 = prime

245 = 5x7² = composite

503 = prime

Q: Is 121 211 245 or 503 composite or prime?

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The factors of 245 are 1, 5, 7, 35, 49, and 245. The pairs are 1*245, 5*49, and 35*7. The prime factorization of 245 is 5*7*7 or in exponential form 5*72. The prime factors are 5 and 7.

Since the number ends in '5' it will divide by '5' ( A prime Number) Hence 5)2695 = 539 7)539 = 77 77 = 11 11)11 = 1 Since 5,7,& 11 are prime numbers , they are the prime factos of 2695 Other compound factors are 35 , 49, 55 , 77 , 245, 385, 539

All factors of 245: 1, 5, 7, 35, 49, 245.

The factors of 2205 are: 1 3 5 7 9 15 21 35 45 49 63 105 147 245 315 441 735 2205 The prime factors are: 3 x 3 x 5 x 7 x 7 3*3*5*7*7

The factors of 3920 are: 1 2 4 5 7 8 10 14 16 20 28 35 40 49 56 70 80 98 112 140 196 245 280 392 490 560 784 980 1960 3920.The prime factors are: 2, 5, 7

Related questions

composite, 5 can go into it

245 is not prime. Composite: (5 x 49 or 5 x 7 x 7) Also you can automatically determine a number as composite if: it ends with 2, 4, 6, 8, and 0: multiples of 2; or it ends with 5: multiples of 5.

39.05-245 = -205.95

It is: 33+211+1 = 245

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

prime numbers have only factors of themselves and 1; therefore 45 is composite--it has factors of 1,3,5,9,15,45

The right answer is 5x5x17

5 and 7 are the prime factors of 245.They are: 5 and 7

The prime factorization of 245 is: 5 x 7 x 7

As a product of its prime factors: 5*7*7 = 245

The prime factorization of 245 is 5^1 * 7^2.

245 = 5 × 72