Find the LCM of 31, 14, and 19.
Correct answer(s):
- 8246
Subject
Arithmetic & Number System
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Quizzes in Arithmetic & Number System
Determine the GCD of 357 and 367 without using prime factor tables.
Correct answer(s):
- 1
Find 10% of 257.
Correct answer(s):
- 257/10
Reduce the fraction 40/84 to lowest terms.
Correct answer(s):
- 10/21
What is the remainder when 5334 is divided by 8?
Correct answer(s):
- 6
Evaluate 108^2 − 42^2 using an arithmetic identity.
Correct answer(s):
- 9900
Find the sum of the arithmetic sequence 26, 28, 30, …, 64.
Correct answer(s):
- 900
What is the units digit of 9^538?
Correct answer(s):
- 1
Find the number of positive divisors of 216.
Correct answer(s):
- 16
Find the remainder when 4^78 is divided by 13.
Correct answer(s):
- 1
Find the LCM of 34, 19, and 36.
Correct answer(s):
- 11628
Determine the GCD of 495 and 387 without using prime factor tables.
Correct answer(s):
- 9
Find 20% of 721.
Correct answer(s):
- 721/5
Reduce the fraction 28/84 to lowest terms.
Correct answer(s):
- 1/3
What is the remainder when 7887 is divided by 3?
Correct answer(s):
- 0
Evaluate 108^2 − 18^2 using an arithmetic identity.
Correct answer(s):
- 11340
Find the sum of the arithmetic sequence 28, 30, 32, …, 66.
Correct answer(s):
- 940
What is the units digit of 17^361?
Correct answer(s):
- 7
Calculate the number of trailing zeros in 130!.
Correct answer(s):
- 32
Find the remainder when 2^143 is divided by 23.
Correct answer(s):
- 1