To find all the divisors of the number 349,448:
- 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 349,448:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
349,448 = 23 × 112 × 192
349,448 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 = (3 + 1) × (2 + 1) × (2 + 1) = 4 × 3 × 3 = 36
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 349,448
- 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
composite factor = 2
2 =
4
composite factor = 2
3 =
8
prime factor =
11
prime factor =
19
composite factor = 2 × 11 =
22
composite factor = 2 × 19 =
38
composite factor = 2
2 × 11 =
44
composite factor = 2
2 × 19 =
76
composite factor = 2
3 × 11 =
88
composite factor = 11
2 =
121
composite factor = 2
3 × 19 =
152
composite factor = 11 × 19 =
209
composite factor = 2 × 11
2 =
242
composite factor = 19
2 =
361
composite factor = 2 × 11 × 19 =
418
composite factor = 2
2 × 11
2 =
484
This list continues below...
... This list continues from above
composite factor = 2 × 19
2 =
722
composite factor = 2
2 × 11 × 19 =
836
composite factor = 2
3 × 11
2 =
968
composite factor = 2
2 × 19
2 =
1,444
composite factor = 2
3 × 11 × 19 =
1,672
composite factor = 11
2 × 19 =
2,299
composite factor = 2
3 × 19
2 =
2,888
composite factor = 11 × 19
2 =
3,971
composite factor = 2 × 11
2 × 19 =
4,598
composite factor = 2 × 11 × 19
2 =
7,942
composite factor = 2
2 × 11
2 × 19 =
9,196
composite factor = 2
2 × 11 × 19
2 =
15,884
composite factor = 2
3 × 11
2 × 19 =
18,392
composite factor = 2
3 × 11 × 19
2 =
31,768
composite factor = 11
2 × 19
2 =
43,681
composite factor = 2 × 11
2 × 19
2 =
87,362
composite factor = 2
2 × 11
2 × 19
2 =
174,724
composite factor = 2
3 × 11
2 × 19
2 =
349,448
36 factors (divisors)
What times what is 349,448?
What number multiplied by what number equals 349,448?
All the combinations of any two natural numbers whose product equals 349,448.
1 × 349,448 = 349,448
2 × 174,724 = 349,448
4 × 87,362 = 349,448
8 × 43,681 = 349,448
11 × 31,768 = 349,448
19 × 18,392 = 349,448
22 × 15,884 = 349,448
38 × 9,196 = 349,448
44 × 7,942 = 349,448
76 × 4,598 = 349,448
88 × 3,971 = 349,448
121 × 2,888 = 349,448
152 × 2,299 = 349,448
209 × 1,672 = 349,448
242 × 1,444 = 349,448
361 × 968 = 349,448
418 × 836 = 349,448
484 × 722 = 349,448
18 unique multiplications The final answer:
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