To find all the divisors of the number 355,488:
- 1. Decompose the number into prime factors.
- See how you can find out how many factors (divisors) the number has, without actually calculating them.
- 2. Multiply the prime factors in all their unique combinations, that yield different results.
1. Carry out the prime factorization of the number 355,488:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
355,488 = 25 × 3 × 7 × 232
355,488 is not a prime number but a composite one.
- Prime number: a natural number that is divisible (divided evenly) only by 1 and itself. A prime number has exactly two factors: 1 and the number itself.
- Examples of prime numbers: 2 (factors 1, 2), 3 (factors 1, 3), 5 (factors 1, 5), 7 (factors 1, 7), 11 (factors 1, 11), 13 (factors 1, 13), ...
- Composite number: a natural number that has at least one factor other than 1 and itself. So it is neither a prime number nor 1.
- Examples of composite numbers: 4 (it has 3 factors: 1, 2, 4), 6 (it has 4 factors: 1, 2, 3, 6), 8 (it has 4 factors: 1, 2, 4, 8), 9 (it has 3 factors: 1, 3, 9), 10 (it has 4 factors: 1, 2, 5, 10), 12 (it has 6 factors: 1, 2, 3, 4, 6, 12), ...
How to count the number of factors of a number?
Without actually finding the factors
- If a number N is prime factorized as:
N = am × bk × cz
where a, b, c are the prime factors and m, k, z are their exponents, natural numbers, .... - ...
- Then the number of factors of the number N can be calculated as:
n = (m + 1) × (k + 1) × (z + 1) - ...
- In our case, the number of factors is calculated as:
- n = (5 + 1) × (1 + 1) × (1 + 1) × (2 + 1) = 6 × 2 × 2 × 3 = 72
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 355,488
- Multiply the prime factors involved in the prime factorization of the number in all their unique combinations, that give different results.
- Also consider the exponents of these prime factors.
- Also add 1 to the list of factors (divisors). All the numbers are divisible by 1.
All the factors (divisors) are listed below - in ascending order
The list of factors (divisors):
Numbers other than 1 that are not prime factors are composite factors (divisors).
neither prime nor composite =
1
prime factor =
2
prime factor =
3
composite factor = 2
2 =
4
composite factor = 2 × 3 =
6
prime factor =
7
composite factor = 2
3 =
8
composite factor = 2
2 × 3 =
12
composite factor = 2 × 7 =
14
composite factor = 2
4 =
16
composite factor = 3 × 7 =
21
prime factor =
23
composite factor = 2
3 × 3 =
24
composite factor = 2
2 × 7 =
28
composite factor = 2
5 =
32
composite factor = 2 × 3 × 7 =
42
composite factor = 2 × 23 =
46
composite factor = 2
4 × 3 =
48
composite factor = 2
3 × 7 =
56
composite factor = 3 × 23 =
69
composite factor = 2
2 × 3 × 7 =
84
composite factor = 2
2 × 23 =
92
composite factor = 2
5 × 3 =
96
composite factor = 2
4 × 7 =
112
composite factor = 2 × 3 × 23 =
138
composite factor = 7 × 23 =
161
composite factor = 2
3 × 3 × 7 =
168
composite factor = 2
3 × 23 =
184
composite factor = 2
5 × 7 =
224
composite factor = 2
2 × 3 × 23 =
276
composite factor = 2 × 7 × 23 =
322
composite factor = 2
4 × 3 × 7 =
336
composite factor = 2
4 × 23 =
368
composite factor = 3 × 7 × 23 =
483
composite factor = 23
2 =
529
composite factor = 2
3 × 3 × 23 =
552
This list continues below...
... This list continues from above
composite factor = 2
2 × 7 × 23 =
644
composite factor = 2
5 × 3 × 7 =
672
composite factor = 2
5 × 23 =
736
composite factor = 2 × 3 × 7 × 23 =
966
composite factor = 2 × 23
2 =
1,058
composite factor = 2
4 × 3 × 23 =
1,104
composite factor = 2
3 × 7 × 23 =
1,288
composite factor = 3 × 23
2 =
1,587
composite factor = 2
2 × 3 × 7 × 23 =
1,932
composite factor = 2
2 × 23
2 =
2,116
composite factor = 2
5 × 3 × 23 =
2,208
composite factor = 2
4 × 7 × 23 =
2,576
composite factor = 2 × 3 × 23
2 =
3,174
composite factor = 7 × 23
2 =
3,703
composite factor = 2
3 × 3 × 7 × 23 =
3,864
composite factor = 2
3 × 23
2 =
4,232
composite factor = 2
5 × 7 × 23 =
5,152
composite factor = 2
2 × 3 × 23
2 =
6,348
composite factor = 2 × 7 × 23
2 =
7,406
composite factor = 2
4 × 3 × 7 × 23 =
7,728
composite factor = 2
4 × 23
2 =
8,464
composite factor = 3 × 7 × 23
2 =
11,109
composite factor = 2
3 × 3 × 23
2 =
12,696
composite factor = 2
2 × 7 × 23
2 =
14,812
composite factor = 2
5 × 3 × 7 × 23 =
15,456
composite factor = 2
5 × 23
2 =
16,928
composite factor = 2 × 3 × 7 × 23
2 =
22,218
composite factor = 2
4 × 3 × 23
2 =
25,392
composite factor = 2
3 × 7 × 23
2 =
29,624
composite factor = 2
2 × 3 × 7 × 23
2 =
44,436
composite factor = 2
5 × 3 × 23
2 =
50,784
composite factor = 2
4 × 7 × 23
2 =
59,248
composite factor = 2
3 × 3 × 7 × 23
2 =
88,872
composite factor = 2
5 × 7 × 23
2 =
118,496
composite factor = 2
4 × 3 × 7 × 23
2 =
177,744
composite factor = 2
5 × 3 × 7 × 23
2 =
355,488
72 factors (divisors)
What times what is 355,488?
What number multiplied by what number equals 355,488?
All the combinations of any two natural numbers whose product equals 355,488.
1 × 355,488 = 355,488
2 × 177,744 = 355,488
3 × 118,496 = 355,488
4 × 88,872 = 355,488
6 × 59,248 = 355,488
7 × 50,784 = 355,488
8 × 44,436 = 355,488
12 × 29,624 = 355,488
14 × 25,392 = 355,488
16 × 22,218 = 355,488
21 × 16,928 = 355,488
23 × 15,456 = 355,488
24 × 14,812 = 355,488
28 × 12,696 = 355,488
32 × 11,109 = 355,488
42 × 8,464 = 355,488
46 × 7,728 = 355,488
48 × 7,406 = 355,488
56 × 6,348 = 355,488
69 × 5,152 = 355,488
84 × 4,232 = 355,488
92 × 3,864 = 355,488
96 × 3,703 = 355,488
112 × 3,174 = 355,488
138 × 2,576 = 355,488
161 × 2,208 = 355,488
168 × 2,116 = 355,488
184 × 1,932 = 355,488
224 × 1,587 = 355,488
276 × 1,288 = 355,488
322 × 1,104 = 355,488
336 × 1,058 = 355,488
368 × 966 = 355,488
483 × 736 = 355,488
529 × 672 = 355,488
552 × 644 = 355,488
36 unique multiplications The final answer:
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