Find the remainder when 8^83 is divided by 7.
Correct answer(s):
- 1
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Find the LCM of 12, 8, and 42.
Correct answer(s):
- 168
Determine the GCD of 333 and 319 without using prime factor tables.
Correct answer(s):
- 1
Find 25% of 607.
Correct answer(s):
- 607/4
Reduce the fraction 12/90 to lowest terms.
Correct answer(s):
- 2/15
What is the remainder when 3333 is divided by 8?
Correct answer(s):
- 5
Evaluate 96^2 − 42^2 using an arithmetic identity.
Correct answer(s):
- 7452
Find the sum of the arithmetic sequence 28, 32, 36, …, 140.
Correct answer(s):
- 2436
How many integers from 1 to 84 are coprime to 84?
Correct answer(s):
- 24
What is the units digit of 8^144?
Correct answer(s):
- 6
Find the number of positive divisors of 192.
Correct answer(s):
- 14
Find the remainder when 9^157 is divided by 19.
Correct answer(s):
- 6
Find the LCM of 14, 45, and 33.
Correct answer(s):
- 6930
Determine the GCD of 175 and 84 without using prime factor tables.
Correct answer(s):
- 7
Find 30% of 791.
Correct answer(s):
- 2373/10
Reduce the fraction 20/96 to lowest terms.
Correct answer(s):
- 5/24
What is the remainder when 8299 is divided by 12?
Correct answer(s):
- 7
Evaluate 48^2 − 30^2 using an arithmetic identity.
Correct answer(s):
- 1404
Find the sum of the arithmetic sequence 48, 53, 58, …, 133.
Correct answer(s):
- 1629
How many integers from 1 to 63 are coprime to 63?
Correct answer(s):
- 36